ドラゴンクエストモンスターズジョーカー (Dragon Quest Monsters - Joker, USA) is a Japanese role-playing game developed by TOSE and published by Square Enix for the Nintendo DS. This game is the fourth installment of the Dragon Quest Monsters series and the first to be released in the United States. The story follows the protagonist, a young Monster Master, as he travels around the world in search of the mysterious 'Greatest Monster'. The gameplay revolves around collecting, training, and battling monsters to create the strongest team. Players can also choose to take part in various tournaments to prove their monster team's strength. The game features hundreds of monsters to collect, as well as a variety of items to equip and customize them. Dragon Quest Monsters - Joker also features a multiplayer mode, allowing players to battle against each other. With its unique blend of monster collecting and turn-based battles, Dragon Quest Monsters - Joker is a must-play for fans of the series and newcomers alike.